Research on Multiphase Permanent Magnet Synchronous Motor Drive Control system

Abstract

多相电机驱动系统在低压大功率、可靠性要求比较高的场合,如舰船推进、电动汽车、轨道交通和航空航天等领域具有突出的优势和广阔的应用前景。但在其控制方面仍然存在大量的问题有待去研究与解决。本文从任意相数的永磁同步电机出发,重点研究了六相永磁同步电机的驱动控制系统,全文主要内容如下: 首先,从对多相电机相数的定义出发,研究了多相电机的定子绕组结构及其空间分布规律。根据绕组函数法,分析了多相电机谐波电流产生的机理和气隙磁动势的特性,并以此为基础对多相电机的电磁转矩性能进行了较为深入的剖析。建立了由逆变器控制的多相永磁同步电动机的数学模型。以合成磁势不变为准则,推导出了多相电机坐标转换模型,实现了多相电...Multi-phase motor drive system has outstanding advantages and potential applications in the low-voltage high-power, high reliability requirements of the occasion, such as ship propulsion, electric vehicles, rail transport and aerospace fields. But there are still a large number of issues to be studied and resolved in their control area. In this paper, firstly, we analyze motors with an arbitrary n...学位:工学博士院系专业:信息科学与技术学院自动化系_控制理论与控制工程学号:2322007015399

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